Oops, missed the edit. Not sure where the 'fixed' jailbreak package with the workaround for the 'can't exit' thing is hidden though... The wiki? (Is there actually one with the proper scripts for 4.1.0?)

The "Device Setting" used to be the first test on the main menu. Find it and run it to create the missing file (like it says). That file is needed to disable diags.EDIT: Alternatively, you can export USB from the diags menu, and create the missing "diagnostic_logs/device_info.xml" file on the shared USB drive from the host PC.

Edit: Okay, I can see a different thread for screensavers without jailbreak needed. We have a problem, though. I can't exit diagnostic mode. Every time I try or try to reboot, it appears to be doing so but always takes me back to this damn diag screen.

Could you point me to this thread? I have exactly the same problem, and most methods require the SSH connection, which I won't get

@Redime/Mantis: Don't. You won't be able to do it on the K4B anyway, but, just, please, for the sake of my sanity, don't. You'll get bitten in the ass next time an official update comes round if you go this way, and it'll make me sad all over again ;'(.

It seems as though the jailbreak didn't work. I tried it several times, even starting with method #1, copying RUNME.sh as suggested elsewhere, but to no avail, every time I try to install the hack I get the 007 error. The jailbreaks in your thread seem to be for <4.1.
I can't do anything manually as I only get connection refused if I try to connect via ssh (both on Windows and on Linux).

I have the new black Kindle with 4.1.0, it was delivered on wednesday and is my first kindle, so sorry for the inconvenience.

Thanks guys, I successfully exited diag mode. I think I'll hold back on the jailbreaking for now though. Custom screensavers are cool, but not that cool, and there isn't a whole lot else I'd want to hack it for going by what I've seen. But, as with Redlime, if any tutorials are released for 4.1.0 I may go ahead with it.

@Redime: As I said, doc outdated. There's no K4 Jailbreak in my thread. The K4 JB is there, and the only method still working on FW 4.1 is the third one.

Ah, yes, it seems that I have used the wrong package. I tried it again with the files at the end of the blog entry and got a loading screen stating "Jailbreak - Please wait while your kindle is being freed", thanks!